Circular canister type vacuum cleaners



June 30, 1959 F. A. GALL ETAL 2,892,511

CIRCULAR CANISTER TYPE VACUUM CLEANERS Filed Nov. 16, 1955 s Sheets-Sheet 1 I INVENTORS. Francis A. Gql/ and WITNESS y Walfer Krzeslewskl d 6% W Bram/Er June 30, 1959 F. A. GALL ET AL CIRCULAR CANISTER TYPE VACUUM CLEANERS 3 Sheets-Sheet 2 Filed NOV. 16, 1955 INVENTORS. F ranc/s 'A. Gall a a BY Walter Krzeslewskl ime/v5) WITNESS June 30, 1959 F. A. GALL ETAL CIRCULAR CANISTER TYPE VACUUM CLEANERS 5 Sheets-Sheet 3 Filed Nov. 16, 1955 Fig. 4.

INVENTORS. F ranc/s A. G all a nd Walter Krzeslewskl ATER/m United States Patent CIRCULAR CANISTER TYPE VACUUM CLEANERS Francis A. Gall, Plainfield, and Walter Krzesiewski, Mau-' ville, N.J., assiguors to The Singer Manufacturing Company, Elizabeth, N.J., a corporation of New Jersey I Application November 16, 1955, SerialNo. 547,174

2 Claims. (Cl. 183-44) This invention relates to vacuum cleaners and, more particularly, to canister type vacuum cleaners having improved means adapted to facilitate removing and emptying removable portion for a canister type cleaner, the removable portion being adapted to support the dust-bag when the cleaner is in operation and also when the dust bag is being emptied.

' With the above and other objects in view, as will hereinafter appear, the invention comprises the devices, combinations and arrangements of parts hereinafter set forth andillustrated in the accompanying drawings of a preferred embodiment of the invention, from which the several features of the invention and the advantages attained thereby, will be readily understood by those skilled in the art.

1 In the drawings:

Fig. 1 is an elevational sectional view of a vacuum cleaner embodying the present invention;

Fig. 2 is an exploded perspective view of the vacuum cleaner shown in Fig. 1; i A

Fig. 3 is an exploded perspective view of a modified form of vacuum cleaner embodying the present invention; Fig. 4 is an elevational sectional view of the vacuum cleaner shown in Fig. 3; and

Fig. 5 is a fragmentary bottom view, partly in section, showing a locking device also shown in Figs. 3 and 4.

Referring more specifically to the vacuum cleaner disclosed in'Figs. 1 and 2, the invention has been embodied in a canister type vacuum cleaner 15 having two frustoconical can-shaped housing members 16 and 17, the lower member 16 forming the base for the vacuum cleaner, andthe the upper member 17 being inverted to form a cover for the lower member. The lower member 16 houses a more or less conventional motor-fan unit 18 and the inner surface of the side wall 19 of the lower member 16 is coated with a sound absorbent 21. The wall 19 of the lower member 16 is apertured at 22 to accommodate a conventional on-ofi electric switch 23, and the wall 19 is apertured at 24 to accommodate a rubber bushing 26 adapted to receive an extension cord 27. The opposite side of the wall 19 from the apertures 22 and 24 is apertured at 28 to receive a hose connector 29 which, during normal operation of the cleaner, functions to exhaust filtered air from the cleaner. The exhaust outlet hose connector 29 normally is partly covered by a snapon-cap 31, which covers the diametrical portion of the outlet and thereby divides the exhaust into two air streams. If it should become desirable to use the vacuum cleaner as a blower, the snap-on-cap 31 may be removed and a hose (not shown) attached to the connector 29.

The upper perimeter of the lower member 16 is in the form of a horizontally positioned circular flange 32 and the lower perimeter of the upper member 17 is likewise in the form of a horizontally positioned circular flange 33. A circular plate 34, for supporting a presently to be described resilient motor-supporting diaphragm 36, is provided with an annular rim 37 that is clamped between the two flanges 32 and 33 and these three elements are held together by-a plurality of bolts 38. A circular molding 39, which is U-shaped in cross section, coversthe flanges 32 and 33, and the bolts 38. Passing inwardly from the annular rim 37 the plate 34 is formed with a plu-- rality of connected portions as follows: A short vertically disposed cylindrical ring 41, a dished portion 42, a vet tically disposed cylindrical ring 43, and a horizontally:

extending shelf 44. The shelf 44 of the plate 34 supports the circular rubber or plastic diaphragm 36 which is.

-. substantially Z-shaped in cross section, and has a vermounts three L-shaped trunk-latches 82.

tically disposed cylindrical ring 46, a horizontally disposed circular ring 47, and a depending cylindrical ring 48. The ring 46 rests on the shelf 44 and the ring 48 embraces the outer surface of the motor-fan unit 18. A final circular dished filter 49 rests on top of the plate 34, and

an inner ring 51 holds the diaphragm 36 on the plate 34, while an outer ring 52 clamps the ring 48 to the motor-fan unit 18.

The upper member 17 has a top-wall 61 in the form of an inverted U-shaped annular portion 62 and an annular shelf 63 surrounding a circular opening 64. The shelf 63 carries an annular gasket 66. The depending ends of three snaps 68 are secured, as by welding, to the inner upper perimeter of a cylindrical pail-shaped or boxlike container or member 69 perforated as at 71. The up standing ends of the snaps 68 extend above the gasket 66 and receive the circular perimeter of a dished cover' member 72, and the lower surface of the cover 72 carries an annular gasket 73 which engages the previously mentioned gasket 66.

The central portion of the cover 72 is apertured to receive an intake hose connector 74 which is held in place by a snap ring 76. The upper external flange of. the connector receives opposite ends of a bale type pick up handle 77. The lower tubularend of the connector 74 enters the mouth 78 of a pervious dust-bag 79, the dust-bag 79 having a non-pervious apertured reinforcing patch 81 surrounding the mouth 78.-

The external conic surface of the upper member 17 When the latches are closed, one leg of each latch 82 extends along the outer conic surface of the upper member 17, and the other leg of each latch 82 bears on the top of the dished cover 72, thereby pressing the cover 72 downwardly and causing the gasket 73 to be pressed firmly against the gasket 66 thereby assuring an air tight connection between the cover 72 and the upper member 17.

When the vacuum cleaner 15 is ready to collect dirt, the notch 78 of the dust-bag "79 will be attached to the lower tubular end of the hose connector 74 and the dust-bag 79 will be positioned inside of the perforated box-like container 69 in such a manner that the cover 72 will be held by the snaps 68. The container 69 will be located in the upper member 17 with the snaps 68 resting on the gasket 66. Also the three trunk-latches 82 will hold the gasket 73 of the cover .72 against the gasket 66. Then a hose (not shown) will be attached to the connector 74. After the vacuum cleaner 15 has been used and it becomes desirable to empty the dust-bag 79, the hose (not shown) will be removed from the connector 74 and the three trunk-latches 82 opened. This makes it possible, by use of the handle 77, to remove the dished cover 72, the box-like container 69 and the dust-bag 79, as a unit. This unit can be transported to a point of disposal where the three snaps 68 can be operated to Patented June 30, 1959 release the cover 72 from the container 69. Lifting the 7 that when the trunk-latches 82 are closed, the whole vacuum cleaner 15 may be picked up by the handle 77. When the trunk-latches 82 are open the handle may be used to remove the dust-bag carrier 69-72 and the dust-bag 79 as a' unit from the cleaner.

The vacuum cleaner 115, shown in Figs. 3, 4 and 5, is similar to the cleaner 15 shown in Figs. 1 and 2. In fact, a description of the following items shown in Figs. 3 and 4, is omitted because they are identical with items shown in Figs. 1 and 2: lower member 16, motor-fan unit 18, side wall 19, sound absorbent 21, aperture 22,

switch 23, aperture 24, bushing 26, cord 27, aperture- 28, connector 29, snap-on-cap 31, flange 32, flange 33, diaphragm 36, final filter 49, hose connector 74, snap ring 76, pick-up handle 77, mouth 78 and reinforcing patch 81.

The vacuum cleaner 115, in addition to the above items, includes an upper member 117 resting on the lower member 16. A circular plate 134, for supporting the diaphragm 36, is provided with an annular rim 137, held to the flange 32 by a plurality of bolts 133, and the flange 33 is clamped to the top of the rim 137 by three U-shaped curved locking devices 150 pivotally hinged, as at 152, and equally spaced around the circumference of the cleaner. Proper gaskets make an air tight joint between the members 16 and 117'. All portions of the circular plate 134, the diaphragm 36, the ring 51 and the ring 52, except for a previously described portion 137' and a downwardly open U-shaped portion 14-31, are the same as the portions shown in Figs. 1 and 2 and are identified by the following numerals 42, 43, 44, 46, 47 and 48. Therefore, these will not be redescribed.

The upper member 117, in addition to having the circular flange 33, has a top-wall 161, which is closed, except for the opening which accommodates the hose connector 74. One side of the lower portion of the upper-member 117 supports a hinge 153 and the opposite side of the member 117 supports a spring clip 154. The hinge 153 pivotally supports a perforated member or circular grille 171 which may be swung from the closed position shown in Fig. 4 to the open position shown in Fig. 3. When in the closed position, the grille 171 supports the bottom of the dust bag 179 and, when the grille 171 is open, a used dust-bag can be removed and replaced by a clean bag.

When the vacuum cleaner 115 is ready to collect dirt, the mouth of the dust-bag 179 will be attached to the connector 74, the grille 171 will be closed, the upper member 117 will rest on the lower member 16, and the three locking devices 150 will be closed to hold the members 16117 together. When the dust-bag is to be emptied, the locking devices 150 are opened and the upper member 117, by use of the handle 77, is carried to a trash box and the grille 171 is lowered to permit removal and replacement of the dust-bag 179.

Having thus described the nature of the invention, what we claim herein is:

l. A canister type vacuum cleaner comprising in combination a housing member having an exhaust aperture, and a top portion, said top portion being provided with a' large sized top opening; a perforated member in said housing member and of such size as to be capable of passing through said top opening, said perforated member having an open top; a dust-bag positioned within said perforated member, and being of such a size as easily to be removable through the open top of said perforated member; a cover for closing the opening in said top portion, and said cover having an intake aperture; a handle for said cover; easily operable latch means for securing said cover to said housing member and for bolding said cover in such a position as to close the top opening in said housing member; easily operable snap means for detachably securing said perforated member to said cover in such a manner that when said latch means is released said cover and said perforated member may be lifted as a unit from engagement with said housing member; and independent attaching means for detachably securing said dust-bag to said cover in such a manner that, when said latch means and said snap means are both released, said cover and said dust-bag may be lifted as a unit from engagement with said perforated member.

2; A canister type vacuum cleaner comprising in combination a housing having an exhaust aperture, and a top portion, said top portion being provided with a large sized top opening; a cylindrical pail-shaped perforated container in said housing and of such size as to be capable of passing through said top opening, said perforated container having an open top; a pervious dust-bag positioned within said perforated container, and being of such a size as easily to be removable through the open top of said perforated container; a dished cover for closing the opening in said top portion, and said cover having an intake aperture; a gasket provided for the lower surface of said cover; a pick-up type handle for said cover; easily operable trunk-type latches carried by said housing and adapted for holding said cover in such a position as to close the top opening in said housing; easily operable snaps carried by said perforated container and adapted for detachably securing said perforated container to said cover in such a manner that when said latches are released said cover and said perforated container may be lifted as a unit from engagement with said housing; and a non-pervious apertured reinforcing patch carried by said dust-bag and adapted for detachably securing said dust-bag to said cover in.

such a manner that, when said trunk latches and said snaps are both released, said cover and said dust-bag may be lifted as a unit from engagement with said perforated container.

References Cited in the file of this patent UNITED STATES PATENTS 948,082 Wickwire Feb. 1, 1910 971,895 Joedicke Oct. 4, 1910 996,691 Wallace July 4, 1911 1,124,684 Allen Ian. 12, 1915 1,774,062 Juelson Aug. 26, 1930 2,605,858 Lang Aug. 5, 1952 2,621,756 Senne Dec. 16, 1952 2,721,624 Osborn Oct. 25, 1955 2,751,038 Acheson June 19, 1956 FOREIGN PATENTS 68,477 Switzerland Mar. 16, 1915 701,447 France Jan. 7, 1931 

